Portable insulated chest



FIG. 1 is a top, front, left side perspective view of a portable insulated chest showing my new design;

FIG. 2 is a bottom, rear, right side perspective view thereof; and

FIG. 3 is a perspective view, showing the underside of the lid thereof shown separately for clarity of illustration. 

The ornamental design for a portable insulated chest, substantially as shown and described. 